Today’s Tech Sightings:

Twitter has a huge problem with trolls, online bullies and people who are using the platform for hate speech and even threats of violence. But since that not-so-friendly environment has scared off potential buyers of the micro-blogging platform, Twitter is now promising “meaningful” changes. The company hopes the new changes to its safety policy will give users more control over their experience. It remains unclear though if this will be enough to rein in enough hate spammers.

Nipping at the heels of Microsoft’s big Surface Desktop reveal. Wednesday, Apple’s big event took aim at the company’s aging MacBook line, particularly the MacBook Pro and the MacBook Air. Among other announcements, the San Francisco event launched a new MacBook Pro laptop with a Touch Bar on the keyboard that changes functions depending on the programs you are using.

Internet security experts are still shaking their heads after a Distributed Denial of Service (DDoS) attack took down major websites on the U.S. East Coast last Friday. Now, DNS provider Dyn, which was a direct target, says hackers used an estimated 100,000 devices for the attack. Many of the devices that included cameras and DVRs were infected with the Mirai malware. And some security experts are warning things are about to get a lot worse. Are your gadgets vulnerable?

Aida Akl is a journalist working on VOA's English Webdesk. She has written on a wide range of topics, although her more recent contributions have focused on technology. She has covered both domestic and international events since the mid-1980s as a VOA reporter and international broadcaster.